AUTHOR=Fuchs-Leitner Isabella , Yazdi Kurosch , Gerstgrasser Nikolas W. , Tholen Matthias G. , Graffius Sophie-Therés , Schorb Alexander , Rosenleitner Jan TITLE=Risk of PTSD Due to the COVID-19 Pandemic Among Patients in Opioid Substitution Treatment JOURNAL=Frontiers in Psychiatry VOLUME=Volume 12 - 2021 YEAR=2021 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2021.729460 DOI=10.3389/fpsyt.2021.729460 ISSN=1664-0640 ABSTRACT=Background. The impact of the COVID-19 pandemic on the mental health of patients suffering from addictive disorders is of major concern. This study aimed to explore the presence and potential increase in posttraumatic stress disorder (PTSD) symptoms, depression and anxiety since the beginning of the pandemic for patients in opioid substitution therapy (OST). Methods. This cross-sectional survey study evaluated a clinical sample of patients in OST (N=123). Symptoms of posttraumatic stress disorder (PTSD) due to the COVID-19 pandemic were assessed by an adapted version of the impact of event scale (IES-R), resulting in two subgroups of low and high risk for PTSD. The depression, anxiety and stress scale (DASS-21) was applied to collect data on the respective symptoms, and changes since the onset of the pandemic were reported on separate scales. Sociodemographic and COVID-19 related factors, as well as data on craving, consumption patterns, concomitant use and the drug market were further assessed. Results. A binary logistic regression analysis confirmed the impact of self-perceived higher burden by psychological and economic factors on the elevated risk for PTSD due to the pandemic. The high-risk PTSD group also showed higher levels of depression, anxiety and stress, as well as a more pronounced deterioration in these symptoms since the pandemic. While reported levels of craving did not differ between the two groups, the high-risk PTSD group indicated a significantly higher increase in craving since the crisis, when compared to the low-risk group. Discussion. Our findings demonstrate elevated levels of clinical symptoms among patients in OST, with more than a quarter of patients found at risk for PTSD due to the COVID-19 pandemic. Furthermore, about 30 to 50% of our patients reported concerning levels of depression, anxiety or stress. Special attention should be drawn to these findings, and potential deterioration of the situation should be addressed by health care facilities. Particularly, psychological and financial burden due to the crisis were identified as factors increasing the risk for PTSD. These factors can easily be evaluated during routine anamneses, and might be a valuable source of information, when special attention is needed.